/* ========================================================
 * bootstrap-tab.js v2.0.2
 * http://twitter.github.com/bootstrap/javascript.html#tabs
 * ========================================================
 * Copyright 2012 Twitter, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ======================================================== */


!function ($) {

    "use strict"

    /* TAB CLASS DEFINITION
     * ==================== */

    var Tab = function (element) {
        this.element = $(element)
    }

    Tab.prototype = {

        constructor: Tab

        , show: function () {
            var $this = this.element
                , $ul = $this.closest('ul:not(.dropdown-menu)')
                , selector = $this.attr('data-target')
                , previous
                , $target

            if (!selector) {
                selector = $this.attr('href')
                selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
            }

            if ($this.parent('li').hasClass('active')) return

            previous = $ul.find('.active a').last()[0]

            $this.trigger({
                type: 'show'
                , relatedTarget: previous
            })

            $target = $(selector)

            this.activate($this.parent('li'), $ul)
            this.activate($target, $target.parent(), function () {
                $this.trigger({
                    type: 'shown'
                    , relatedTarget: previous
                })
            })
        }

        , activate: function (element, container, callback) {
            var $active = container.find('> .active')
                , transition = callback
                    && $.support.transition
                    && $active.hasClass('fade')

            function next() {
                $active
                    .removeClass('active')
                    .find('> .dropdown-menu > .active')
                    .removeClass('active')

                element.addClass('active')

                if (transition) {
                    element[0].col - md - offset - Width // reflow for transition
                    element.addClass('in')
                } else {
                    element.removeClass('fade')
                }

                if (element.parent('.dropdown-menu')) {
                    element.closest('li.dropdown').addClass('active')
                }

                callback && callback()
            }

            transition ?
                $active.one($.support.transition.end, next) :
                next()

            $active.removeClass('in')
        }
    }


    /* TAB PLUGIN DEFINITION
     * ===================== */

    $.fn.tab = function (option) {
        return this.each(function () {
            var $this = $(this)
                , data = $this.data('tab')
            if (!data) $this.data('tab', (data = new Tab(this)))
            if (typeof option == 'string') data[option]()
        })
    }

    $.fn.tab.Constructor = Tab


    /* TAB DATA-API
     * ============ */

    $(function () {
        $('body').on('click.tab.data-api', '[data-toggle="tab"], [data-toggle="pill"]', function (e) {
            e.preventDefault()
            $(this).tab('show')
        })
    })

}(window.jQuery);